Fuel cell hybrid power tramcar united braking system and method

A fuel cell and tram technology, which is applied in the field of fuel cell hybrid electric tram combined braking system, can solve the problems of power supply equipment damage, locomotive self-weight increasing, and traction network pressure exceeding.

Pending Publication Date: 2018-07-31
SOUTHWEST JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The energy generated during the braking process will increase the voltage of the traction network. If no absorption or consumption measures are taken, the voltage of the traction network will exceed the specified value, causing damage to other power supply equipment
At present, the regenerative braking of urb

Method used

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  • Fuel cell hybrid power tramcar united braking system and method
  • Fuel cell hybrid power tramcar united braking system and method
  • Fuel cell hybrid power tramcar united braking system and method

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Embodiment Construction

[0066] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further elaborated below in conjunction with the accompanying drawings.

[0067] In this example, see figure 1 and figure 2 As shown, the present invention proposes a fuel cell hybrid tram combined braking system, including a fuel cell, a fuel cell power supply circuit, a lithium-ion battery, a lithium-ion battery power supply circuit, a supercapacitor, a supercapacitor power supply circuit, a traction inverter Inverter, traction motor, mechanical braking device, control system, DC bus and braking resistor;

[0068] A fuel cell power supply circuit, the input end of the fuel cell power supply circuit is connected to the fuel cell, and the output end of the fuel cell power supply circuit is connected to the DC bus; the fuel cell power supply circuit transfers electric energy from the fuel cell power supply circuit in one direction transmit el...

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Abstract

The invention discloses a fuel cell hybrid power tramcar united braking system and method. The system comprises a fuel cell power supply circuit, a lithium ion battery power supply circuit, a super-capacitor power supply circuit, a traction inverter, a traction motor, a mechanical braking device, a control system, a direct current bus and a braking resistor. Optimal braking and braking energy recycling maximization are achieved when it is guaranteed that fuel cell hybrid power reliably supplies power to a tramcar load; and on the premise that the braking performance of the system is guaranteed, optimal braking uniting regenerative braking, energy consumption braking and mechanical braking is achieved, braking energy is recycled as much as possible, the fuel use rate is increased, the purpose of fuel economical efficiency is achieved, the service life of an energy storage device is prolonged, and cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of fuel cell hybrid power, and in particular relates to a fuel cell hybrid power tram combined braking system and method. Background technique [0002] With the rapid development of social economy, urban population density and floating population are increasing day by day, the existing urban traffic has been overwhelmed, traffic inconvenience has become a major factor restricting social and economic development, and at the same time, it has made it difficult for residents in large and medium cities to drive and ride. The phenomenon. The growth of private vehicles makes the traffic more congested, and at the same time causes air pollution and noise pollution. Urban rail transit vehicles have the advantages of large transportation volume, fast driving speed, good comfort, and low construction cost. In addition, hybrid electric trams are driven by fuel cells / batteries / supercapacitors, which are clean and pollu...

Claims

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Application Information

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IPC IPC(8): B60L7/10B60L7/22B60L11/18H02J7/34H02J7/00H02P27/08H02P3/26
CPCH02J7/0029H02J7/345H02P3/26H02P27/085B60L7/10B60L7/22B60L58/30H02J7/00304Y02T10/70Y02T10/72Y02T90/40
Inventor 李奇尚伟林陈维荣于爽黄文强王天宏邓惠文朱亚男
Owner SOUTHWEST JIAOTONG UNIV
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